[IGSMAIL-7660] igs14_2013.atx: Update including new GLONASS-M satellite R856

[Arturo Villiger]

Dear IGS colleagues,

The absolute IGS antenna correction file (igs14_wwww.atx) has been
updated. The new release is called 'igs14_2013.atx'. It contains
the following changes:


1) According to the Information Analytical Centre (IAC), GLONASS-M satellite
R856 (2018-053A) launched on 18 June 2018 was put into operation in slot 5.
According to the Center for Orbit Determination in Europe (CODE), R856 became
active on the 6 August 2018 (DOY 218). Note that the SVN number was assigned
according to an IGS  Workshop recommendation (see IGSMAIL #7252) to 856
(changed from 756 to 856).

The following PRELIMINARY phase center offset (PCO) values were assigned:

PCO_X = -54.5 cm
PCO_Y = 0.0 cm
PCO_Z = 245.0 cm

2) The following decommission date has been added:

   R05 (734):  05 October 2018

3) QZSS satellites order according to PRN number instead of SVN number


The updated antenna correction model is available at
ftp://ftp.igs.org/pub/station/general/igs14_2013.atx
or
ftp://ftp.igs.org/pub/station/general/igs14.atx

With best regards,
Arturo Villiger
on behalf of the IGS Antenna Working Group

-- 
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Arturo Villiger
Astronomical Institute
University of Bern
Sidlerstrasse 5
CH - 3012 Bern / Switzerland

phone ++41 31 631 85 06
fax   ++41 31 631 38 69
arturo.villiger at aiub.unibe.ch
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